Because mitochondria are essential organelles for regulating energy homeostasis and intrinsic apoptosis, the perturbation of mitochondrial functions has been considered as an anticancer treatment. In this study, a new near-infrared (NIR) fluorescent probe, SiR-Mito11 was developed as a theragnostic agent for brain tumor by targeting mitochondria. SiR-Mito11 exhibited potential anticancer activity against glioma cells but tolerance in normal neuronal cells. We further confirmed that the selective accumulation of SiR-Mito11 in glioma cells disrupted mitochondria membrane potential, followed by apoptotic cell death.
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http://dx.doi.org/10.1021/acs.bioconjchem.9b00375 | DOI Listing |
Clin Neuropharmacol
October 2024
Department of Neurosurgery, Yubei District Hospital of TCM, Chongqing, China.
Objective: Gliomas are a general designation for neuroepithelial tumors derived from the glial cells of the central nervous system. According to the histopathological and immunohistochemical features, the World Health Organization classifies gliomas into four grades. Bevacizumab is a monoclonal antibody targeting vascular endothelial growth factor that has been approved for the treatment of glioblastoma multiforme (GBM) as a second-line therapy.
View Article and Find Full Text PDFCurr Neurol Neurosci Rep
January 2025
Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, 80 Avenue Augustin Fliche, Montpellier, 34295, France.
Purpose Of Review: In low-grade glioma (LGG), besides the patient's neurological status and tumor characteristics on neuroimaging, current treatment guidelines mainly rely on the glioma's genetics at diagnosis to define therapeutic strategy, usually starting with surgical resection. However, this snapshot in time does not take into account the antecedent period of tumor progression and its interactions with the brain before presentation. This article reviews new concepts that pertain to reconstruct the history of previous interplay between the LGG's course and adaptive changes in the connectome within which the glioma is embedded over the years preceding the diagnosis.
View Article and Find Full Text PDFCancer Res
December 2024
Lunenfeld-Tanenbaum Research Institute, Toronto, Canada.
IDH-mutant low-grade gliomas (LGGs) are slow-growing brain tumors that frequently progress to aggressive high-grade gliomas that have dismal outcomes. In a recent study, Wu and colleagues provide critical insights into the mechanisms underlying malignant progression by analyzing single-cell gene expression and chromatin accessibility across different tumor grades. Their findings support a two-phase model: in early stages, tumors are primarily driven by oligodendrocyte precursor-like cells and epigenetic alterations that silence tumor suppressors like CDKN2A and activate oncogenes such as PDGFRA.
View Article and Find Full Text PDFMol Carcinog
January 2025
Department of Neurosurgery, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, The People's Republic of China.
RNF7 (Ring Finger Protein 7) is a key component of CRLs (Cullin-RING-type E3 ubiquitin ligases) and has been found to possess intrinsic anti-ROS capabilities. Aberrant expression of RNF7 has been observed in various tumor types and is known to significantly influence tumor initiation and progression. However, the specific role of RNF7 in glioblastoma remains unclear.
View Article and Find Full Text PDFJ Cancer
January 2025
Department of Medical Imaging and Radiological Sciences, Chang Gung University, Taoyuan, 33302, Taiwan.
Previous studies revealed that tumor-associated macrophages/microglia (TAMs) promoted glioma invasiveness during tumor progression and after radiotherapy. However, the communication of TAMs with tumor cells remains unclear. This study aimed to examine the role of small extracellular vesicles (sEVs) derived from TAMs in TAMs-mediated brain tumor invasion.
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